Marginal Revolution is the blog of Tyler Cowen and Alex Tabarrok, both of whom teach at George Mason University. MR began in August of 2003 and there have been new posts daily since that time. In numerous reviews and ratings over the years Marginal Revolution has consistently been ranked as the best or one of the best economic blogs on the web, but it is more (and less) than that, also representing the quirks of its authors.
Also as brilliant podcast as Conversations with Tyler.
Tyler Cowen, Alex Tabarrok.